EP0022398A1 - Dispositif automatique pour grenailler des pièces creuses de grandes dimensions - Google Patents

Dispositif automatique pour grenailler des pièces creuses de grandes dimensions Download PDF

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Publication number
EP0022398A1
EP0022398A1 EP80400953A EP80400953A EP0022398A1 EP 0022398 A1 EP0022398 A1 EP 0022398A1 EP 80400953 A EP80400953 A EP 80400953A EP 80400953 A EP80400953 A EP 80400953A EP 0022398 A1 EP0022398 A1 EP 0022398A1
Authority
EP
European Patent Office
Prior art keywords
blasting
enclosure
shot
panel
nozzles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP80400953A
Other languages
German (de)
English (en)
French (fr)
Inventor
Bernard Sandillon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LUTELEC LUCHAIRE EQUIPEMENT
Original Assignee
LUTELEC LUCHAIRE EQUIPEMENT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LUTELEC LUCHAIRE EQUIPEMENT filed Critical LUTELEC LUCHAIRE EQUIPEMENT
Publication of EP0022398A1 publication Critical patent/EP0022398A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks

Definitions

  • the invention relates to an automatic device for peening large hollow parts, the device comprising a sealed enclosure, movable oscillating peening ramps arranged in the enclosure.
  • German patent No. 1,577,550 making it possible to treat three faces of a part of relatively small dimensions such as I or H irons in which the nozzles are placed in front of two opposite faces. and rotate around the axis of the part to treat the other faces.
  • None of these devices makes it possible to treat a bulky piece on at least four of its six sides, as is the case, for example, for containers intended for trucks or railway wagons.
  • this container has the shape of a rectangular parallelepiped closed at the rear by doors and whose floor, consisting of support beams, does not have to undergo shot blasting.
  • the use of currently known devices saves time compared to the manual process but requires a large number of manipulations to treat the entire surface.
  • the invention aims to treat the entire surface in a single operation requiring no manipulation of the part to be treated and allowing, by the adoption of an automatic cycle obtained by the combination of known and new means, its execution in promptly.
  • the automatic shot blasting device comprising a sealed enclosure, means for moving the piece to be shot blasted, shot blasting ramps with mobile oscillating nozzles arranged in the enclosure, is remarkable in that the enclosure comprises its ends of the doors for the introduction and exit of the parts, and at at least one of its ends a blasting panel, movable in a direction perpendicular to the longitudinal axis of the enclosure and retractable in a lateral housing of the enclosure, and in the space between said panel and the other end of the enclosure, a shot blasting gantry, movable along the longitudinal axis of the enclosure, composed of three ramps forming an inverted U, arranged in a plane perpendicular to the axis of the enclosure, electrical means for synchronizing the movements of the gantry and the panel, means for switching the air-shot mixture between at least the gantry and the panel, means for controlling the movement of the oscillating nozzles.
  • the panel 8 carries shot blasting nozzles and is movable in a direction perpendicular to the longitudinal axis of the enclosure. In order to free the passage for the exit from the container, the panel fits into a lateral housing 9 of the enclosure.
  • the detectors 10 to 18 are part of the electrical means for synchronizing the movements of the gantry and of the panel.
  • the latter further comprises an internal shot-blasting device 19 which, when it is not in use, has returned to a housing 20 arranged on one side of the enclosure.
  • This device can be used simultaneously or successively with the gantry and / or the panel. Electrical synchronization means, not shown, control the movement, the installation and the operation of the device.
  • This device for example of the type described in European patent application No. 80400301.0 filed in the name of the Applicant on March 4, 1980, consists of a set of two carriages, the first of which, carrying the second, moves longitudinally at the interior of the part, while the second carrying the blasting nozzles is capable of moving perpendicular to the movement of the first to ensure the treatment of the internal surfaces of the part.
  • the device is put in place by means allowing its movement from the housing 20, its positioning in front of the opening of the container and its movement within it.
  • the installation also includes switching means (FIGS. 5 and 6) of the air-shot mixture between the gantry and the panel and possibly other interior or manual shot-blasting devices, and means for controlling (FIG. 3) the movement. boom nozzles.
  • the gantry 7 ( Figure 2) consists of a rolling beam 21 and two boxes 22 (the covering panels have been removed) descending vertically on each side of the part to be treated 4.
  • the beam moves through four rollers 23 on two raceways 24 fixed on the side walls of the cabin.
  • the gantry is moved by a gearmotor-variator-brake group, placed in the beam, driving a shaft 25 controlling a roller on each of the raceways.
  • the pipes are supported by carriages 26.
  • the speed of movement can be adjusted, for example, between 0.37 m / min and 2.05 m / min.
  • the shot peening is provided by a set of nozzles 27 with free jet distributed in three ramps arranged opposite the three sides of the container.
  • each ramp carries two oscillating nozzles.
  • the oscillation of the nozzles known per se, is necessary for the shot blasting to sweep all of the surfaces to be treated.
  • This oscillation is obtained by a system of connecting rods and link rods connecting at least a portion of the nozzles to control means which are shown diagrammatically in FIG. 4.
  • These means comprise a pneumatic cylinder 28 with which a hydraulic shock absorber 29 is associated.
  • piston rod of the jack cylinder a connecting rod 30 secured to an axis 31 controlling a system of connecting rod 32 and rod 33 actuating the nozzle holders 34.
  • the amplitude of oscillation of the nozzles 35 is determined by a contactor device mounted on the rod represented by the adjustable stops 36 and the contacts 37. These contacts control the air supply 100 to the solenoid valves 38 of the distributor 39 supplying the cylinder 28.
  • the speed of movement of the pneumatic cylinder can be adjusted by acting on the throttles 40 of the oil returns of the hydraulic regulator 26. At each speed of displacement of the mobile gantry corresponds to a translation speed of the pneumatic cylinder and the adjustment of the two speeds is correct if no wave appears on the treated surface.
  • the panel 8 (FIG. 3) for blasting the bottom consists of a frame 41 in profiled bars supporting, according to the embodiment, two shafts 42 mounted on bearings on which the blasting nozzles 43 are wedged (3 per shaft ). At one end of the frame are means 44 for controlling the movement of the nozzles at all points identical to those of the mobile gantry.
  • the frame is supported by two V-shaped rollers 45 rolling on a beam 46 making the entire width of the cabin and extending to the end of the housing 9.
  • the frame is guided by two counter-rollers 47 also in V rolling under the beam.
  • the beam in addition to the two V-shaped raceways, has another path intended for guiding a carriage 48 supporting the sanding pipes, compressed air and the electric cable and, opposite to this, the chain 49 for translational driving of the movable panel 8.
  • the drive chain is controlled by a gearmotor-variator-brake group 50 located on the roof of the lateral housing 9.
  • the air-shot mixture switch ( Figures 5 and 6) allows shot blasting either with the nozzles of the mobile gantry, or with those of the mobile panel, or with those of the interior shot blasting device or manual shot blasting.
  • the switch ( Figure 5) consists of two plates 51 and 52. According to the embodiment intended to supply three different stations via, for example, three pipes per station, the plate 51, fixed, door at its periphery nine holes divided into three groups of three 53 D, E, F ,; 54 D, E, F and 55 D, E, F, arranged at 120 °. These bores receive bushings 56 for fixing the pipes supplying the three stations - previously mentioned and seals and forming nozzles.
  • the plate 52 ( Figure 6), movable in rotation and in translation, is parallel to the first plate 51. It carries three bores 53, 54, 55 arranged at its periphery at 120 ° from each other.
  • the plate is provided in its center with a cylindrical hub 58, capable of turning and sliding in a cylindrical body 59, with an axis perpendicular to the plane of the plate, secured to a console 60, fixed on the base 61 which also maintains the fixed plate 51.
  • Stepping rotation means are provided to bring a nozzle of the movable plate in front of one of the nozzles of the fixed plate.
  • a lug 62 provided at the periphery of the plate 52, receives the end of a piston rod of a double cylinder 63 whose end of the other piston rod is articulated on the base 61.
  • the double piston cylinder 63 makes it possible to obtain three angular positions of the movable plate 52 by rotation of the latter around its hub 58.
  • the three positions designated by D, E, F correspond for example, for position D , feeding the mobile gantry 7, for position E, for supplying the manual or internal shot blasting device 19 and for position F, for supplying the mobile panel 8.
  • These positions are obtained for D with the two rods of the jack retracted; for E, a retracted rod, an extended rod and for F the two extended rods.
  • position detectors D, E, F in rotation and position detectors G, H close or apart from the movable table .
  • These two positions are obtained by a pneumatic cylinder whose end 64 of the rod alone is shown in order to separate the movable plate from the fixed plate so that the rotation can take place freely, without friction on the seals, or in order bring it closer to bring the seals of the fixing sleeves of the sandblasting pipes into contact.
  • the nozzles 53, 54 and 55 of the movable plate are likely to be matched with one of the nozzles 53D, 54D, 55D or 53E, 54E, 55E or 53F, 54F, 55F of the plate fixed to form a sealed passage between the shot blasting machine and the station or device for use.
  • the electrical controls are made so that rotation is possible if the movable plate is in H; approximation of the plate is possible if it is in D, E, F and not between two positions, shot blasting is possible if the plate is in G.
  • the gantry 7 is in A on the contact 14, the panel 8 in K returned to its housing 9, on the contact 18, the air-shot switch in position E.
  • the type of container is selected by a switch which, depending on the embodiment, allows two positions: I container 12 meters long or J container 6 meters long.
  • the gantry arriving on contact 13 the blasting and the translation of the gantry are stopped for a sufficient time to recharge the blasting machines and the compressed air tank.
  • the shot blasting starts again and, a few seconds later, the gantry continues to move.
  • the gantry arrives on contact 11 the peening of the roof is stopped.
  • the blasting of the sides is stopped as well as the translation and the oscillation.
  • the air-blasting switch comes to position F and the blasting, the oscillation of the nozzles and the translation of the panel 8 begin.
  • the gantry returns to position A where it stops on contact 14.
  • the entry and exit of the container are non-automatic operations.
  • the contacts 15 are safeties controlling the mechanical conveyor driving the container and authorizing its operation only when the doors are opened wide.
  • Door safety devices not shown, prevent the system from operating if the doors are not closed.
  • this operation may be triggered simultaneously with the shot blasting of the sides and may occasionally continue during shot blasting of the bottom by the panel. It is then necessary to provide on the air-shot switch positions for which the shot supply of the internal shot-blasting device remains permanently connected during the switching of the supply from the gantry to the panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP80400953A 1979-07-09 1980-06-25 Dispositif automatique pour grenailler des pièces creuses de grandes dimensions Withdrawn EP0022398A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7917754A FR2460755A1 (fr) 1979-07-09 1979-07-09 Dispositif automatique pour grenailler des pieces creuses de grandes dimensions
FR7917754 1979-07-09

Publications (1)

Publication Number Publication Date
EP0022398A1 true EP0022398A1 (fr) 1981-01-14

Family

ID=9227670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400953A Withdrawn EP0022398A1 (fr) 1979-07-09 1980-06-25 Dispositif automatique pour grenailler des pièces creuses de grandes dimensions

Country Status (6)

Country Link
US (1) US4372140A (show.php)
EP (1) EP0022398A1 (show.php)
JP (1) JPS5615978A (show.php)
BR (1) BR8004229A (show.php)
ES (1) ES8105180A1 (show.php)
FR (1) FR2460755A1 (show.php)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590826A1 (fr) * 1985-11-29 1987-06-05 Aerospatiale Installation automatique de grenaillage pour la formation de precontraintes de compression
FR2643007A1 (fr) * 1989-02-16 1990-08-17 Sebag Gabriel Dispositif de traitement d'objets par sablage en particulier de vetements

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012170999A1 (en) 2011-06-10 2012-12-13 Maxi-Blast, Inc. Shot blast cabinet and track system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817711A (en) * 1955-01-12 1959-08-06 Bason & Sons Ltd Improvements in or relating to sand-blasting apparatus
US2982007A (en) * 1959-01-16 1961-05-02 Metal Improvement Equipment Co Apparatus for shot peening elongated articles
US3521406A (en) * 1967-12-04 1970-07-21 Carborundum Co Workpiece treating apparatus
US3523391A (en) * 1967-03-13 1970-08-11 Intercontinental Mfg Co Inc Abrasive blast cleaning apparatus
FR2121119A5 (show.php) * 1970-12-30 1972-08-18 Condeco Automation
FR2127569A5 (show.php) * 1971-02-26 1972-10-13 Badische Maschf Gmbh

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221876A (en) * 1933-02-28 1940-11-19 Thomas A Mackin Apparatus for cleaning vehicles
US2881506A (en) * 1955-12-12 1959-04-14 Metal Improvement Company Shot peening apparatus
US2933802A (en) * 1958-03-31 1960-04-26 Wire Abrasives Company Gantry type peen forming machine
US3426563A (en) * 1966-04-04 1969-02-11 Metal Improvement Co Peening apparatus
DE1577550A1 (de) 1966-10-26 1970-01-29 Alfred Gutmann Ges Fuer Maschb Einrichtung zum Behandeln von Werkstuecken mit einem Strahlmittel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817711A (en) * 1955-01-12 1959-08-06 Bason & Sons Ltd Improvements in or relating to sand-blasting apparatus
US2982007A (en) * 1959-01-16 1961-05-02 Metal Improvement Equipment Co Apparatus for shot peening elongated articles
US3523391A (en) * 1967-03-13 1970-08-11 Intercontinental Mfg Co Inc Abrasive blast cleaning apparatus
US3521406A (en) * 1967-12-04 1970-07-21 Carborundum Co Workpiece treating apparatus
FR2121119A5 (show.php) * 1970-12-30 1972-08-18 Condeco Automation
FR2127569A5 (show.php) * 1971-02-26 1972-10-13 Badische Maschf Gmbh

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590826A1 (fr) * 1985-11-29 1987-06-05 Aerospatiale Installation automatique de grenaillage pour la formation de precontraintes de compression
EP0226502A1 (fr) * 1985-11-29 1987-06-24 AEROSPATIALE Société Nationale Industrielle Installation automatique de grenaillage pour la formation de précontraintes de compression
FR2643007A1 (fr) * 1989-02-16 1990-08-17 Sebag Gabriel Dispositif de traitement d'objets par sablage en particulier de vetements

Also Published As

Publication number Publication date
US4372140A (en) 1983-02-08
FR2460755B1 (show.php) 1982-08-27
JPS5615978A (en) 1981-02-16
ES493245A0 (es) 1981-06-01
FR2460755A1 (fr) 1981-01-30
BR8004229A (pt) 1981-05-12
ES8105180A1 (es) 1981-06-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19810205

18D Application deemed to be withdrawn

Effective date: 19830530

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SANDILLON, BERNARD